Kongregate Racing is slicker, prettier, and has better mechanics for multiplayer, but I love the customization and powerups in this one. Also, nice mini-map display. Makes you wonder what K Racing might have been with these things.
Don't like how it's impossible to pass high jumping mammoths. I think this game would be a lot more interesting if there were "speedbumps" on the ice you had to jump - this would add strategy and allow chances to pass high jumpers. A "brake" foot would be interesting too, as well as maybe a drafting effect.
I really liked it - and a multiplayer would be awesome. I think a more developed "career path" would help alot. Also - seems like the bigger guys have a few advantages. I think you could counteract this by allowing the little guys to jump a little higher than the big guys.
When somebody quits, the rest shouldn't lose score. The quitter should be "auto-finished" at the bottom with 0 score, and the rest should be scored based on the original number of contestants.